Power Apps: source code editing for Canvas Apps

by Contributed | Apr 7, 2021 | Technology

This article is contributed. See the original author and article here.

Why?

Ever since I saw the post Source code files for Canvas apps from Microsoft, I thought this might come in handy for some of my Canvas Apps. As a non-coding Citizen Developer, I just thought that day would be more in the future. A day when this feature would not be experimental anymore but general available :beaming_face_with_smiling_eyes:.

One of my customers created a Power App with too many screens, too many data sources and too many controls referencing each other. The result was a Power Apps Studio with a Page Unresponsive error when when opening specific screens:

This left us with no way to clean up the latest version of the Canvas App through the Studio anymore :cross_mark::face_without_mouth::cross_mark:.

What?

This post adds information on how to edit Power Apps source code for Canvas Apps. It will also show you that GitHub it is not per se needed.

How?

I still recommend to read the Microsoft post first. There is a lot of potential in using GitHub as your code repository. There are also some Youtube video’s on how to perform most of the steps explained in further detail. This post just focuses on how to use the tooling without a GitHub setup.

1) First step is to download the .msapp file of your Canvas App. The .msapp file is like a bundled package of multiple kind of files (.json, .xml and .yaml), making up your whole Power App :woman_technologist:.

You can download your .msapp file by opening the Power App in the online Studio. Then selecte Save as and select This computer as your destination. A popup should appear that offers you to download the .msapp file:
Save your .msapp file to a local destination

2) I then move the .msapp file to a folder within my Downloads folder making the file path:

C:UsersDjangoLohnDownloadsPowerApps-Language-Tooling-masterConfigScreen.msapp

3) Make sure that you install the required .NET Core SDK version as mentioned in the Microsoft post. Then download the Power Apps Language Tooling locally to your Downloads folder:

Download the Power Apps Language Tooling tool from GitHub locally

C:UsersDjangoLohnDownloadsPowerApps-Language-Tooling-master

4) Then just run the build.cmd file of the unzipped folder as Administrator to be sure:

Run the build.cmd as an Administrator

C:UsersDjangoLohnDownloadsPowerApps-Language-Tooling-masterPowerApps-Language-Tooling-masterbinDebugPASopa

Please note that your directory path may be different at the beginning, but from the last PowerApps-Langauage-Tooling-master section it should be the same. The PASopa file is where the magic happens.

5) Now open the default Windows Command Prompt and Run as adminisrator:

6) Have a folder prepared where you want to store the unpacked .msapp files. I chose a folder next to the .msapp file again:

C:UsersDjangoLohnDownloadsPowerApps-Language-Tooling-masterConfigScreenSourceFiles

7) Change the directory path in the Command Prompt to the directory where the PASopa file is located using this command

cd C:UsersDjangoLohnDownloadsPowerApps-Language-Tooling-masterPowerApps-Language-Tooling-masterbinDebugPASopa

8) Execute the following command to unpack the .msapp files to the desired folder:

pasopa -unpack C:UsersDjangoLohnDownloadsPowerApps-Language-Tooling-masterConfigScreen.msapp C:UsersDjangoLohnDownloadsPowerApps-Language-Tooling-masterConfigScreenSourceFiles

Note that the first directory is that of the .msapp file. The second directory is that of the folder where we want to unpack the separate files. Warnings may occur because of checksums built in by the developers. However in the end, the folder with the unpacked .msapp file will have a default content structure:

With a tool like Notepad++ or my personal favorite Visual Studio Code, you can edit the individual files. This is how you edit Power Apps source code of Canvas Apps. I prefer Visual Studio Code because you can open up a whole folder in one go:

Visual Studio Code opening a whole Folder and Sub Folders to edit individual files

When this is all done, you can just repack the files with a command like:

pasopa -pack  ConfigScreen.msapp C:UsersDjangoLohnDownloadsPowerApps-Language-Tooling-masterConfigScreenSourceFiles 

If you are more observant than I was, you will have noticed that this command does not give an output directory… so where did the new repacked .msapp file go?? It gives you the new .msapp file in the PASopa directory:

The repacked ZIP file can be imported in the online Studio. This import will then update the existing Power App to a new version. Never thought I would say this as if I know how to develop code but –> happy coding :flexed_biceps::nerd_face::thumbs_up:! 

Originally published at https://knowhere365.space/power-apps-source-code-edit-for-canvas-apps/ 

Cloud Adoption Framework Enterprise-Scale Series and Livestream

by Contributed | Apr 7, 2021 | Technology

This article is contributed. See the original author and article here.

If you are starting with your cloud journey, there are many things you need to think of to set up your cloud environment and your Azure cloud architecture . Things like networking, subscription management, security, governance, and many more, can be fairly complex. That is where the Cloud Adoption Framework for Azure can deliver proven guidance to help you with your Azure cloud journey. And with Enterprise-scale landing zones, you even get an architectural approach and a reference implementation that enables effective construction and operationalization of landing zones on Azure, at scale. I had the chance to collaborate with Sarah Lean (Azure Cloud Advocate) on an enterprise-scale series of blog posts to show how our fictional company Tailwind Traders can leverage the Cloud Adoption Framework and Azure Landing Zones to accelerate their cloud journey.

You can find our Enterprise-Scale landing zones blog series on the Azure.com blog:

• Choose the landing zone for your cloud adoption journey
• Accelerate your cloud adoption with the start small and expand landing zone
• Scale cloud adoption with modular designs for enterprise-scale landing zones
• Deploy key design principles with enterprise-scale architecture
• Leverage enterprise-scale reference implementations for your cloud adoption
• Live stream AMA on Microsoft Learn TV and YouTube (April 7)

Microsoft Azure Cloud Adoption Framework Enterprise-Scale

The Microsoft Cloud Adoption Framework for Azure is proven guidance that’s designed to help you create and implement the business and technology strategies necessary for your organization to succeed in the cloud. It provides best practices, documentation, and tools that cloud architects, IT professionals, and business decision makers need to successfully achieve short-term and long-term objectives.
By using the Microsoft Cloud Adoption Framework for Azure best practices, organizations can better align their business and technical strategies to ensure success.

Microsoft Docs

Next to our Enterprise-Scale landing zones blog series, we will also host a livestream on April 7.

We will be exploring Tailwind Traders and their cloud adoption journey using enterprise-scale architecture in future blog posts. However, if you’d like to learn more about enterprise-scale landing zones then please join Sarah Lean and Thomas Maurer on the 7^th April at 8am PST/3pm GMT on LearnTV where we will be doing a Q&A and deployment of an Enterprise-Scale Landing Zone live!